EP3630379A1 - Method and device for cleaning interiors of containers and facilities - Google Patents
Method and device for cleaning interiors of containers and facilitiesInfo
- Publication number
- EP3630379A1 EP3630379A1 EP18725854.6A EP18725854A EP3630379A1 EP 3630379 A1 EP3630379 A1 EP 3630379A1 EP 18725854 A EP18725854 A EP 18725854A EP 3630379 A1 EP3630379 A1 EP 3630379A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tube
- hose
- transport
- cleaning
- container
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 117
- 238000000034 method Methods 0.000 title claims abstract description 33
- 239000002360 explosive Substances 0.000 claims abstract description 113
- 239000000203 mixture Substances 0.000 claims abstract description 105
- 238000004880 explosion Methods 0.000 claims abstract description 23
- 238000005516 engineering process Methods 0.000 claims abstract description 5
- 238000002156 mixing Methods 0.000 claims description 114
- 238000001816 cooling Methods 0.000 claims description 71
- 239000002826 coolant Substances 0.000 claims description 63
- 229920003023 plastic Polymers 0.000 claims description 48
- 239000004033 plastic Substances 0.000 claims description 48
- 238000003780 insertion Methods 0.000 claims description 42
- 230000037431 insertion Effects 0.000 claims description 42
- 239000002184 metal Substances 0.000 claims description 28
- 239000007788 liquid Substances 0.000 claims description 24
- 238000004804 winding Methods 0.000 claims description 18
- 230000008569 process Effects 0.000 claims description 11
- 229920002943 EPDM rubber Polymers 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 10
- 238000010926 purge Methods 0.000 claims description 6
- 239000008246 gaseous mixture Substances 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000000806 elastomer Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 27
- 230000008878 coupling Effects 0.000 description 24
- 238000010168 coupling process Methods 0.000 description 24
- 238000005859 coupling reaction Methods 0.000 description 24
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 15
- 239000004810 polytetrafluoroethylene Substances 0.000 description 15
- 230000001681 protective effect Effects 0.000 description 12
- 229910000831 Steel Inorganic materials 0.000 description 11
- 239000010959 steel Substances 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 238000010276 construction Methods 0.000 description 9
- 239000002918 waste heat Substances 0.000 description 9
- 238000011161 development Methods 0.000 description 8
- 230000018109 developmental process Effects 0.000 description 8
- 238000009826 distribution Methods 0.000 description 8
- 229920002635 polyurethane Polymers 0.000 description 8
- 239000004814 polyurethane Substances 0.000 description 8
- 239000004800 polyvinyl chloride Substances 0.000 description 8
- 206010016754 Flashback Diseases 0.000 description 7
- 239000000446 fuel Substances 0.000 description 7
- -1 polytetrafluoroethylene Polymers 0.000 description 7
- 229920000915 polyvinyl chloride Polymers 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000007800 oxidant agent Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 3
- 239000005977 Ethylene Substances 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 239000012783 reinforcing fiber Substances 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 229910000669 Chrome steel Inorganic materials 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000005474 detonation Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000009993 protective function Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- 101100293261 Mus musculus Naa15 gene Proteins 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 239000012611 container material Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/0007—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by explosions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/08—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
- F16L11/088—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall comprising a combination of one or more layers of a helically wound cord or wire with one or more braided layers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/14—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics
- F16L11/15—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics corrugated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/14—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics
- F16L11/16—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics wound from profiled strips or bands
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/20—Double-walled hoses, i.e. two concentric hoses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/48—Devices for removing water, salt, or sludge from boilers; Arrangements of cleaning apparatus in boilers; Combinations thereof with boilers
- F22B37/486—Devices for removing water, salt, or sludge from boilers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D25/00—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D25/00—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag
- F27D25/006—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag using explosives
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G7/00—Cleaning by vibration or pressure waves
- F28G7/005—Cleaning by vibration or pressure waves by explosions or detonations; by pressure waves generated by combustion processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/12—Heat utilisation in combustion or incineration of waste
Definitions
- the invention relates to the field of cleaning of interiors of containers and equipment. It relates to an apparatus and a method for removing deposits in the interior of containers and plants by means of explosion technology.
- the device includes a supply device for providing an explosive mixture or its output components, as well as a transport line connected to the supply device for transporting the explosive mixture to a cleaning station.
- the device and the method are used in particular for the cleaning of polluted and garbage incineration plants with caking or deposits on its inner walls.
- the interiors of incinerators, z. B. of waste incineration plants or thermal power plants, which are directly or indirectly exposed to the combustion process or of waste heat boilers, which are connected downstream of such facilities, are subject during their operation more or less heavy pollution.
- a disadvantage of this method is the use of explosives.
- the use of explosives In addition to the high cost of the explosive must be operated to avoid accidents or theft, for example, during storage of the explosive, a large security effort.
- the introduction of explosives in a hot container also requires a completely reliable and efficient cooling system to prevent premature detonation of the explosive.
- the use of explosives is permitted only with special approval and is subject to strict conditions. This can be a hindrance to your daily work.
- Publication EP 1 362 213 B1 discloses a further cleaning method which likewise uses the means of explosion generation. Instead of explosive but according to this method, an inflatable container with an explosive gas mixture container shell is attached to the end of a cleaning lance. The cleaning lance is introduced together with the empty container shell into the boiler room and positioned near the point to be cleaned. Subsequently, the container shell with an explosive. Inflated gas mixture. By igniting the gas mixture in the container shell, an explosion is generated whose shock waves lead to the detachment of verses on the boiler walls. The Be fiscalerhüllc is torn by the explosion and burned. It therefore represents commodity.
- This method and the associated device have the advantage over the above-mentioned explosive blasting technology that the method is favorable in operation. So z.
- the starting components of a gas mixture comprising oxygen and a combustible gas, such as ethylene are inexpensive compared to explosives.
- the procurement and handling of said gases in contrast to explosives require no special Grants or qualifications so that anyone with appropriate training can complete the procedure.
- the starting components are supplied via separate supply lines of the cleaning lance and the dangerous, explosive gas mixture is therefore produced only in the cleaning lance shortly before the explosion.
- the handling of the individual starting components of the gas mixture is far less dangerous, since these are the single highest flammable but not explosive.
- hose in this invention means a flexible elongated hollow body.
- the hose differs from a pipe by its flexibility.
- Flexible in this context means, in particular, that the transport hose can be deflected in all directions from its longitudinal axis or longitudinal direction.
- the term “hose” should not be restricted to a specific material or material group.
- the hose may be plastic or metal or a combination thereof.
- the transport tube has in particular a round, very special a circular base cross-section.
- the transport line or the transport hose forms a closed transport channel, through which an explosive mixture can be transported.
- the transport takes place from the supply-side supply device to the cleaning-side outlet opening of the transport line or the transport hose.
- “Supply side” means in particular the supply device facing or arranged at the supply device. “Cleaning side” means in particular in the operating position of the point to be cleaned (cleaning point) facing or arranged at the cleaning site.
- the transport channel can form a circular cross section.
- the transport channel may have a (largest) diameter of 60 mm or less, 50 mm or less, 40 mm or less, 30 mm or less, or even 20 mm or less.
- the (largest) diameter may be 5 mm or larger, 10 mm or larger, 20 mm or larger, or even 30 mm or larger.
- the transport channel as described in more detail below, from a hose made of plastic, such as /.
- plastic such as /.
- PTFE polytetrafluoroethylene
- the largest diameter of the transport channel in this case would be 20 mm or less, in particular 10 mm or less, and especially 5 mm or less.
- the erfmdungsgemässe transport hose can be used in various ways.
- the transport hose can be used to bridge the distance between the supply device or a dosing unit or an inlet device and the insertion opening into the container or system to be cleaned.
- the supply device or the dosing unit or the inlet device does not need to be carried each time when the insertion opening in the container or system to be cleaned is changed.
- the various insertion for cleaning the interior of the container or system from different sides are easy and convenient to reach via a correspondingly long transport hose without entrainment of supply device or metering unit or Einlas.
- the transport hose can be used to extend the operating radius in the interior of the container or system to be cleaned.
- a larger area inside the container or plant can be covered.
- the cleaning of the container or plant can be carried out "online", that is during operation of the plant and correspondingly at high temperatures of several hundred degrees Celsius or “offline” with set or reduced operation and correspondingly lower temperatures.
- the transport hose in particular comprises a gas-impermeable hose or consists of this.
- the gas-impermeable or gas-tight hose forms a (closed) transport channel for an explosive mixture.
- the gas-impermeable hose is made of plastic or contains a plastic.
- the plastic can z.
- the plastic can z.
- Said plastic hose may be incorporated in these integrated reinforcing fibers. These can be present as a textile fabric, such as braid.
- the Ver reinforcing fibers are used in particular to increase the tensile and / or compressive strength of the hose.
- a gas-impermeable hose can, as explained below, however, also be made of metal.
- the transport hose is constructed in multiple layers.
- the transport hose may in particular comprise a plurality of hoses of different physical and / or structural nature, which are guided one inside the other.
- a cooling channel in particular an annular cooling channel, can be formed between two hoses, in particular between two gas- or liquid-impermeable hoses.
- the cooling medium can, for. B. via an inlet, such as inlet nozzle, are fed into the cooling channel.
- the inlet can be arranged on the transport hose or on the inlet device or mixing unit.
- the cooling channel is used, in particular, for cooling a connection component adjoining the transport hose on the cleaning side, such as tubular body or lance body and / or a container shell, which are introduced into the hot interior of the container or installation to be cleaned during hot application (online application).
- the said cooling channel can also serve to cool the transport hose. This is heated by the ignition of the explosive mixture in the transport channel.
- the transport tube also heats up when used online, ie when the transport hose has to be inserted into the hot interior of the container or system to be cleaned.
- the cooling medium is conveyed through the cooling channel to the cleaning-side end of the transport hose.
- the cooling channel at the cleaning end of the transport hose to an outlet opening, so that cooling medium enters the outside and z.
- a subsequent component (connection component) and / or a container shell cools from the outside.
- connection component is a tubular body
- the cooling medium in the region of the cleaning-side end of the transport hose, in particular in the connection or coupling region between the transport hose and the tubular body can be led into the interior of the tubular body via an outlet opening and from this cool inside.
- the outlet opening opens in particular at the cleaning-side end portion in the transport channel of the transport tube.
- a valve can be arranged in the region of the outlet opening.
- the valve is in particular mechanically controlled.
- the valve is designed in particular as a check valve and is intended in particular to prevent the penetration of a liquid or gaseous medium from the outside into the cooling channel.
- the control of the supply of the coolant can take place via a feed side arranged, controlled inlet valve.
- the hoses of a multilayer transport hose are in particular pushed loosely into one another. As a result, inner hoses, z. B. for replacement, pull out of the transport hose again.
- the transport hose can in particular contain a first hose and an inner, surrounded by the first hose, second hose which is gas impermeable.
- the transport hose can contain a hose, in particular a protective hose, which has one or more of the following properties or protective functions:
- This hose hereinafter referred to as the first hose, is in particular pressure-resistant against radially inward outward pressure forces.
- Such radially acting compressive forces occur, for example, during the ignition of the explosive mixture in the transport channel and in the case of undesired restrikes.
- the internal flour is also protected against damage by radially acting pressure forces.
- the first tube may also be tensile against axial tensile forces.
- the inner tube is protected against damage by axially acting tensile forces.
- the first tube is in particular made of metal, such as steel.
- the first tube may be a hose mesh.
- the hose mesh is in particular made of metal, such as steel.
- the hose mesh is in particular a wire mesh.
- the transport hose contains, as already mentioned above, in particular a hose which is gas-impermeable, ie gas-tight.
- This hose referred to below as the second hose, is in particular an inner hose, which is surrounded by the first hose.
- the second tube may be a corrugated tube according to a variant.
- a corrugated hose is a hose made of rigid material, eg. As metal, with wavy changing diameter, which has become flexible due to the corrugation. When bent, the waves on the outer arch stretch apart, while simultaneously being compressed in the inner arc.
- the corrugated tube has in particular an annular corrugation.
- Corrugated hoses made of metal are colloquially referred to as corrugated pipes.
- the corrugated hose is in particular made of metal, such as steel (stainless steel or stainless steel).
- the corrugated hose can be made of chrome steel.
- the corrugated hose can be made by welding or hydraulic forming of a base profile.
- Metal corrugated hoses are used in particular as heat-resistant gas- or liquid-impermeable hoses in hot applications.
- the corrugated hose forms in contrast to an above-mentioned gas-impermeable hose, which is made of plastic or contains a plastic, in spite of the gas impermeability in particular not the transport channel.
- the transport hose can therefore also contain a further hose, which forms the transport channel.
- This hose, below for distinctness called third tube is arranged in accordance with a multi-layered construction inside.
- the third tube may in particular be surrounded by the second tube.
- the third tube is characterized in particular by the fact that its inner wall has a less unevenness than the second tube, ie roughness.
- the flow resistance with respect to the corrugated hose should be significantly reduced.
- the reduction of the flow resistance in the transport channel through a very smooth inner wall should allow smaller cross sections for the transport channel. In this way, the overall diameter of the transport tube can be kept low.
- the third tube is in particular a Wickeischlauch.
- the winding tube is in particular made of metal, such as steel (stainless steel or stainless steel).
- the winding tube can be made of chrome steel.
- Winding hoses consist of turns that are loosely hooked into one another. They are bendable. Winding hoses can be made with a hook profile or with a folded profile, such as the Agraff profile. Due to the loose mesh of the profiles winding tubes without special sealing measures are not gas or liquid tight. However, this is not absolutely necessary in the present invention, since the third hose should primarily provide the smoothest possible inner wall and not necessarily tightness. The tightness is ensured in particular by the second hose. However, the third tube can also be a gas-impermeable hose made of plastic or containing a plastic, as explained below. For Further details on the formation of a tube made of plastic or containing plastic is referred to the corresponding disclosure below.
- this has a transport channel or the hose forming the transport channel directly or indirectly surrounded annular channel for the transport of a cooling medium.
- Said annular channel can be formed according to a development between the second and third tube, provided that the third tube is also gas or liquid impermeable.
- the transport hose contains an outer hose, hereinafter referred to as fourth hose for the purpose of distinctness.
- the fourth tube is particularly liquid impermeable, i. liquid-tight.
- the fourth tube is also gas impermeable, i. gas-tight.
- the fourth tube is in particular the outermost tube.
- the outermost tube forms the outer surface of the transport tube.
- the first tube forms the outermost tube.
- the fourth tube in particular surrounds the first tube. Between the inner, first and the outer, fourth tube, an annular cooling channel is formed for a cooling medium.
- the fourth tube may also be a corrugated tube.
- the corrugated hose is in particular of the type described above.
- the corrugated hose is in particular made of metal, as already described above.
- a fourth hose in the execution of a corrugated hose made of metal, such as steel, is used in particular when the transport hose has to be introduced into the hot interior of the container or system for the purpose of cleaning. In this case, the fourth hose must be correspondingly heat and heat resistant.
- the fourth tube can also be made of a plastic.
- the fourth tube has in particular elastic properties which give the necessary flexibility.
- the fourth plastic hose may contain reinforcing fibers. These can be present as a textile fabric, such as braid.
- a fourth plastic hose can be used if it does not have to be heat or heat resistant. This is the case, for example, when the transport hose is not inserted into the hot interior of the container or system to be cleaned.
- transport hose is indeed introduced into the interior of the container or system to be cleaned, the container or the system is not in operation (offline application) and the interior cooled accordingly, so that no heat or heat resistance is required.
- the fourth tube may be made of an elastomer such as ethylene-propylene-diene rubber (EPDM).
- the fourth tube may contain an elastomer such as ethylene-propylene-diene rubber (EPDM).
- the transport hose as already mentioned above, consists of plastic, such as polyurethane, polyvinyl chloride, or polyvinyl chloride. tetrafluoroethylene (PTFE). It is also possible that the transport hose contains a hose made of plastic, such as polyurethane, polyvinyl chloride, or polytetrafluoroethylene (PTFE). The hose can also contain the mentioned plastic.
- the hose made of plastic, such as polyurethane, polyvinyl chloride, or polytetrafluoroethylene (PTFE) forms in particular the transport channel.
- the said tube is, as mentioned, in particular gas-impermeable.
- the transport hose according to this embodiment can also be constructed in multiple layers.
- the tube made of plastic, such as polyurethane, polyvinyl chloride, or polytetrafluoroethylene (PTFE) or containing a plastic is in particular the innermost tube.
- the transport hose according to this embodiment may in particular comprise a plurality of hoses, of different material and / or structural nature, which are guided into one another, such as two or three.
- the hose made of plastic such as polyurethane, polyvinyl chloride, or polytetrafluoroethylene (PTFE) according to an embodiment of the invention, analogously to the variant described above with winding tube, guided in a protective tube, i. be surrounded by this.
- the protective tube performs one or more of the above-mentioned protection functions.
- the protective hose can be made of metal.
- the protective tube may be a, in particular pressure-resistant tubular braid.
- the hose mesh is in particular made of metal, such as steel.
- the hose mesh is in particular a wire mesh.
- the hose made of plastic can be surrounded by a liquid-tight and optionally also gas-tight hose be, which forms together with the plastic hose the above-mentioned annular cooling channel.
- the liquid and especially also gas-tight hose is in particular made of metal, such as steel.
- the said hose can also be made of plastic or contain a plastic.
- the said tube can z. B. be a corrugated hose.
- the corrugated tube may be formed according to the manner described above.
- the said hose can in particular be arranged between a protective hose and the inner plastic hose which forms the transport channel.
- the protective tube and the liquid or gas-impermeable hose to form the annular cooling channel are formed from one and the same tube.
- the plastic gas-impermeable hose can be loosely inserted into the hose (s) surrounding it. This allows easy and quick (wear-related) replacement of the hose made of plastic.
- Hoses made of plastic come especially in the offline to turns when the container or system to be cleaned is cooled, or outside the container or system to be cleaned to overcome distances between the supply device and the inlet opening of the container to be used.
- the cooling medium instead of via an annular cooling channel, can also be transported via a separate cooling hose to the component and / or a container shell adjoining the transport hose on the cleaning side.
- This cooling hose can be arranged, for example, in the transport channel or in an annular channel between two hoses.
- the diameter of the cooling tube is in particular a fraction of the diameter of the innermost tube, z. B. a few millimeters, in particular up to a maximum of 5 mm. In this way, the cooling hose occupies only a small part of the cross-sectional area of the transport channel or finds place in the annular gap of the annular channel.
- Such a cooling hose is in particular made of plastic.
- the length of the transport hose can be several meters.
- the length of the transport hose can z. B. 5 meters or more, in particular 10 meters or more.
- the length of the transport hose can be up to 100 m or even more than 100 m.
- the transport hose serves in particular as a conduit extension between the supply device or between an inlet device or mixing unit and a cleaning-side outlet opening.
- the inlet means may include or consist of a mixing unit.
- the mixing unit is characterized in particular by the fact that an explosive mixture is produced in this starting component introduced into the mixing unit.
- the inlet device may contain metering valves.
- the metering valves are used in particular to deliver the explosive mixture prepared by a metering unit or its starting components, in particular controlled metered into the transport hose.
- the inlet device may also comprise or consist of both metering valves and a mixing unit.
- a container casing can be arranged, which can accommodate at least a portion of the explosive mixture which flows out of the transport line via the outlet opening.
- the amount of explosive mixture received by the container shell depends on the recording vo lumen of the container shell.
- the container shell is flexible.
- the container shell may be a sack.
- the container shell may be made of paper, plastic or a combination of paper and plastic.
- the container shell can be constructed in one or more layers.
- the device can also be designed so that at least part of the explosive mixture is introduced into the interior of the container or system via the outlet opening at the end of the transport line and a cloud of the explosive mixture is formed in the interior.
- the cloud is characterized in particular by the fact that they are not exposed to the ambient atmosphere in the interior via physical means or via a barrier such.
- B. a container shell is delimited. Rather, the edge area of the cloud is in direct contact with the ambient atmosphere.
- connection component which assumes a specific function, is arranged.
- the connection component in particular forms a transport channel for the explosive mixture. This represents the extension of the transport channel of the transport hose.
- the connection component forms in particular the cleaning-side outlet opening for the explosive mixture.
- the connection component is in particular made of metal, such as steel.
- connection component may be a guide tube according to an embodiment variant.
- the guide tube is designed in particular as a lance body.
- the guide tube is designed in particular as a handpiece, and serves for the manual placement of the container shell or the cloud of explosive mixture in the interior of the container or the system. When using a container shell, this is particularly attached to the guide tube.
- the attachment can be direct or indirect.
- the guide tube is used in particular when the Lransportschlauch is not to be introduced into the interior of the container or the system.
- the guide tube is correspondingly designed to be introduced into the interior of the container or system to be cleaned, in particular to be introduced manually.
- the guide tube allows the alignment and placement of the outlet opening to the cleaning point.
- the guide tube may have a length of 0.5 meters or more, or 1 meter or more.
- the guide tube may have a length of 2 meters or more, and more particularly 3 meters or more, such as 3 meters or more. B. of 4 meters.
- the guide tube is in particular via a coupling, such as quick release detachably fastened to the transport hose.
- a coupling such as quick release detachably fastened to the transport hose.
- the guide tube is designed in particular as a simple tube. That is, the guide tube is formed in particular single-walled. That is, the guide tube forms in particular only a single channel. As a result, the guide tube is very light and therefore extremely handy, even with larger lengths, compared to conventional, multi-walled cleaning lances with integrated cooling channel.
- Cooling can, as already described above, take place via a cooling medium, which is supplied via a cooling channel in the transport tube and applied from the outside to the guide tube or fed into the transport channel of the guide tube.
- the guide tube can also be constructed multi-walled and have a surrounding the transport channel annular cooling channel.
- the annular cooling channel may be open on the cleaning side, so that cooling medium escape to the outside and z. B. can cool the container shell.
- the annular cooling channel of the guide tube is in particular connected via a hose coupling with an annular cooling channel of the transport tube, so that cooling medium can be transported from the cooling channel of the transport tube into the cooling channel of the guide tube.
- the guide tube can also contain a connection seal, such as connection piece, for connecting a supply line for the cooling medium and for feeding the cooling medium into the cooling channel or into the transport channel. That is, the cooling medium is not supplied via the transport hose but via a separate supply line directly to the guide tube.
- a connection seal such as connection piece
- a container connection member for connecting a container shell can be formed in the cleaning-side end portion of the guide tube.
- a container connection member for connecting a container casing is arranged on the cleaning-side end of the transport hose. The container connection member forms the outlet opening for the explosive mixture accordingly.
- the container connection member may comprise a protective tube, a protective bell or a protective cage, for receiving the not yet expanded, /,. B. compressed or folded container shell.
- a hose coupling in particular quick coupling, for tool-free connection of a connection component, such. B. the above-mentioned guide tube or the container connection member, may be provided on the transport tube.
- the connection component may also be another tube, such as a positioning tube, which is to be inserted into the container or system to be cleaned (for example analogous to the guide tube or lance body).
- connection component may also be a distribution unit, to which in turn a plurality of wegchainden Positionierschläuchen are to be introduced, which are to be inserted into the container or system to be cleaned, and by means of which the position of the cleaning explosion or the container envelopes in the interior of the container or the system can be determined.
- the associated cleaning process will be discussed in more detail below.
- the positioning tube is in particular made of plastic or contains a plastic, such as. As PVC or PUR.
- the politician can also be made of metal.
- the hose coupling in particular allows a tool-free connection by plugging the components together. There are also bayonet connection conceivable, which require a plug-in rotary movement to connect. In addition, screw connections are possible. In particular, the hose coupling also has the property that the connection can be released again without tools.
- the hose coupling can also be designed to forward a cooling medium from the cooling passage of the transport hose into the cooling passage of the connection component, in particular a guide tube.
- the transport line or the transport hose can be connected directly or indirectly to the supply device. It can be provided that the transport hose extends from the supply device, in particular from a metering unit or from an inlet device or mixing unit, to the cleaning-side outlet opening or a connection component with outlet opening adjoining the transport hose.
- the transport hose can be connected to the feed side via a rotary joint with a component of the device, in particular with an inlet device or mixing unit.
- the rotary joint allows the transport hose to be rotated about its longitudinal axis. As a result, torsional forces are avoided, which inevitably occur when moving the transport hose.
- the rotary joint may be formed together with a coupling, in particular quick coupling.
- the explosive mixture is produced in the device in particular from at least one first and second starting component.
- the said explosive mixture is in particular gaseous.
- the starting components are in particular also gaseous.
- the starting components especially if they are under pressure in pressure vessels, may also be liquid.
- the liquid starting components may, for. B. only in the preparation of the explosive, gaseous mixture in the gaseous state.
- the explosive mixture contains in particular a fuel.
- the fuel which is a first starting component, can be liquid or gaseous.
- the fuel may in particular be a fast-evaporating liquid.
- the fuel can, for. From the range of combustible hydrocarbons such as acetylene, ethylene, methane, ethane, propane, gasoline, oil, etc.
- the explosive mixture furthermore contains in particular an oxidizing agent, such as. As gaseous oxygen or an oxygen-containing gas, which is the second starting component. That is, the explosive mixture is in particular formed from a first starting component, which is a fuel, and a second starting component, which is an oxidizing agent.
- the starting components which are mixed to form an explosive mixture may themselves already be mixtures, such as gas mixtures or mixtures of liquids.
- the Supply device In order to produce the explosive mixture of at least two starting components provided by the supply device, it is necessary to arrange between the Supply device and the transport hose in particular a mixing unit or an inlet device with a mixing unit arranged.
- the starting components are each transported via a separate supply line, such as hose, from the supply device, in particular from a metering unit, to the inlet device or mixing unit and fed into it.
- the supply lines are accordingly connected to the inlet device or mixing unit.
- the supply lines can have a length of up to 3 meters.
- the supply lines can also be made longer and z. B. lengths of up to 15 or 30 meters. Such longer supply lines are particularly suitable when the metering valves are arranged together with the mixing unit in an inlet device, which in particular is not part of the supply device or metering unit.
- the mixing unit forms a mixing zone in which the starting components introduced into the mixing unit are mixed to form the explosive mixture.
- the mixing unit forms corresponding supply channels for the starting components, which open into the mixing zone.
- the explosive mixture is then fed from the mixing unit in the transport line and transported to a cleaning-side outlet opening of the transport line.
- the inlet device or mixing unit can also be designed to feed a cooling medium into a cooling channel, in particular an annular cooling channel of the transport line.
- the cooling medium can basically be or contain a gas, such as air, or a liquid, in particular water.
- the cooling medium is in particular a liquid-gas mixture, such as water-air mixture.
- the supply lines are correspondingly connected to the inlet device or mixing unit.
- the supply of the cooling medium such as water and / or air is controlled by the control device via corresponding fittings. These valves can be arranged in the dosing unit or the mixing unit or are arranged in the inlet device.
- the cooling medium or the individual output components of the cooling medium can in particular also be transported by the supply device via supply lines to the inlet device or mixing unit.
- an ignition device for igniting the explosive mixture can be arranged in the inlet device or mixing unit.
- the ignition-effective component of the ignition device is arranged in particular in the mixing zone or following the mixing zone in the mixing unit.
- the supply device comprises, inter alia, pressure vessels from which the starting components are transported via the supply lines to the inlet device or mixing unit.
- the supply device comprises a metering unit for the metered provision of the explosive mixture or its starting components.
- the dosing unit can also be designed to provide the cooling medium.
- the already mentioned supply lines lead accordingly from the metering unit to the inlet device or mixing unit.
- the inlet device or mixing unit is arranged in particular between the mentioned metering unit and the transport hose.
- the dosing unit is particularly suitable as a device, for. B. formed as a mobile device.
- the dosing unit can be stored according to roles or wheels.
- the output components of the dosing unit are housed in particular in a housing.
- the abovementioned pressure vessels are designed, in particular, as metering vessels which provide the starting components in a defined metering, so that the starting components in the inlet device or mixing unit can be mixed in a stoichiometric ratio to the explosive mixture.
- the dosing containers are in particular part of the dosing unit. This means that the dosing containers are arranged in particular in the dosing unit.
- the dosing can in turn be fed from Druckgasfla Patient with the starting components. Accordingly, the dosing unit is connected via supply lines with the compressed gas cylinders.
- the device also comprises a control device for controlling the method.
- the control device controls the, in particular metered, introduction of the explosive mixture or its starting components into the transport line or into the inlet device or mixing unit. Furthermore, the control device also controls the ignition device, via which the explosion is triggered. The control device also controls the supply of the cooling medium in the transport line or inlet device or mixing unit.
- the control device is in particular likewise arranged in the dosing unit.
- the control device may comprise an input unit.
- the input unit can be arranged in the dosing unit.
- the input unit may include control buttons, an input keyboard or a touch-sensitive screen (touch screen). Furthermore, the input unit may also contain output means such as screen or indicator lights.
- the device comprises, as already mentioned, for the metered introduction of the gaseous mixture or the starting components, in particular metering valves.
- Each output component is assigned a metering valve.
- the metering valve includes a valve for the controlled flow of the starting components.
- the metering valves can be arranged in the metering unit. However, the metering valves can also be arranged on the inlet device or mixing unit.
- the empress device or mixing unit can be integrated in the dosing unit.
- both the metering valves and the mixing unit can be integrated into the metering unit.
- the transport hose can also be connected (directly) to the dosing unit.
- the cleaning method according to the invention is based on the principle of bringing an explosive mixture by means of the transport line in the vicinity of a cleaning point in order to bring the explosive mixture as close to the cleaning point to explode.
- the cleaning process comprises the steps:
- the starting components are introduced by the supply device or the dosing unit via the supply lines in particular into an inlet device or mixing unit and mixed together in the inlet device or mixing unit to the explosive mixture.
- the pressurized in the pressure vessels output components arrive at the inlet to the inlet or mixing unit in the lower ambient pressure, whereby they receive the necessary kinetic energy for their transport through the supply line or for the transport of the explosive mixture through the transport line.
- the mixing unit forms a mixing zone in which the starting components for the explosive mixture are mixed together.
- the explosive mixture is introduced from the mixing zone in the transport line and thus in the transport tube and transported in this or in this direction towards the outlet.
- a container shell for receiving an explosive mixture is provided.
- the container shell is filled in particular with the emerging from the outlet opening of the transport line explosive mixture.
- a container casing is attached to the cleaning-side outlet opening of the transport line before providing the explosive mixture in the transport line.
- a cloud of explosive mixture is formed in the interior of the container or system to be cleaned with the explosive mixture emerging from the outlet opening of the transport line.
- the method comprises the following further steps:
- the explosive mixture is ignited, in particular via the ignition device.
- the ignition takes place, in particular, into the mixing zone or into an adjoining zone of the mixing unit.
- the ignition can take place directly on the closing of the metering valves, ie immediately after completion of the introduction of the starting components in the mixing unit. This is especially true when a cloud of explosive mixture to be generated in the interior of the container or the system.
- the ignition is triggered delayed and z. B. only occurs when the pressure in the mixing unit has fallen to below the initiation of the starting components to less than 0.5 bar, in particular to less than 0.25.
- the explosion initiated by the ignition propagates from the mixing unit through the transport line to the outlet opening and also triggers the explosion of the explosive gas mixture in the container shell or the cloud following the outlet opening. In the case of a container shell it will be destroyed in the explosion.
- the force of the explosion and the area vibrated by the shock waves e.g. A container or pipe wall, cause the break-off of the Wandan- caking and slagging and thus cleaning the surface.
- the strength of the explosion required for cleaning and thus the amount of gaseous starting components used to produce the explosive mixture depends on the type of contamination and on the size and type of contaminated container or system.
- the dosage and strength of the explosion can be and are preferably chosen so that no damage to installations.
- the possibility of optimal dosing of the substances used reduces on the one hand the cleaning costs, on the other hand the danger and damage risk for plant and persons.
- the explosive mixture can waive a mixing unit and directly from the supply device, eg. B. from a pressure vessel, and introduced into the transport line.
- this alternative solution is generally not considered for safety and practical reasons.
- the cleaning cycle described above can be divided into different work cycles.
- the metering valve (s) will be opened and the outgo gskomponenten, z. B. from pressure vessels, introduced into the mixing unit with pressure, mixed there with each other and forwarded as an explosive mixture via the transport line to the outlet.
- the metering valves are closed again.
- the ignition is activated in a further cycle and brought the trained total volume of explosive mixture to the explosion.
- a new explosive mixture can be generated by reopening the metering valves in a subsequent cleaning cycle.
- the transport channel is flushed following a blast and before a new cleaning cycle with a purge gas.
- the purging of the transport channel is used to remove residues, such as water vapor and combustion gases from the transport channel.
- the rinsing can z. B. with air or oxygen.
- purging the transport channel may also include cooling.
- a, in particular liquid cooling medium such as water
- the cooling medium is in particular via a corresponding inlet, such as inlet nozzle, fed to the inlet device or mixing unit in the transport channel.
- the cooling medium can also be fed into the transport channel via an inlet, such as inlet connection on the transport hose.
- the inlet for the cooling medium is arranged in particular following an ignition device. This prevents unwanted moistening of the ignition device.
- the feeding of a liquid cooling medium in the transport channel is particularly suitable when the hose or the wall, which (r) forms the transport channel is impermeable to liquids such as water and in particular forms a smooth inner wall, as z. B. in a hose made of plastic, such as polytetrafluoroethylene (PTFE), the case.
- PTFE polytetrafluoroethylene
- the Hinspeisung the liquid cooling medium in the transport channel is used in particular the protection of the hose, especially if it consists of plastic, from an excessive thermal load.
- the hose liquid cooling medium can be fed into the transport channel.
- the amount of Lucaspiesenem cooling medium is kept low, since in principle as little as possible moisture is to be introduced into the system.
- Thelichspiesene liquid cooling medium evaporates in particular and thus deprives the environment heat.
- liquid cooling medium can be fed. In this way, the life of a plastic tube can be extended considerably.
- the feeding of a liquid cooling medium in the transport channel can also be used for unwanted, but not always avoidable flashbacks. Such restrikes are detected early, for example with the sensors described below.
- the feeding of a liquid cooling medium is also used here for the direct cooling of the transport channel forming tube and thus to protect it against excessive thermal stress.
- the feeding of a liquid cooling medium into the transport channel can take place before and / or during the flushing of the transport channel with a purge gas.
- the feeding of a liquid cooling medium into the transport channel can also be carried out independently of rinsing of the transport channel with a purge gas.
- a temperature sensor can be arranged in the inlet device or mise-in unit for monitoring a cleaning cycle.
- the temperature sensor is arranged in particular in the mixing zone.
- the temperature sensor detects temperature values in the inlet device or mixing unit or in the mixing zone.
- a pressure sensor In the inlet device or mixing unit can - also for monitoring a cleaning cycle - be arranged a pressure sensor.
- the pressure sensor is arranged in particular in the flow direction upstream of the mixing zone in the supply channel of the first starting component (fuel) or the second starting component (oxidizing agent).
- the pressure sensor detects pressure values in the supply channel.
- the two sensors are used in particular for the early detection of flashbacks. Flashbacks occur when the explosive mixture ignites spontaneously in the area of the outlet opening or in the transport line. The explosive mixture is thus ignited from the outlet opening back into the mixing zone. As a result of the back ignition, correspondingly high pressures and temperatures can be produced in the mixing unit, which are detected by the pressure sensor or the temperature sensor.
- a back ignition can already take place during the introduction of the starting components into the inlet device or mixing unit.
- the pressure sensor or the temperature sensor is coupled to the control device.
- the control device comprises a programmable logic controller (PLC control).
- PLC control programmable logic controller
- the controller evaluates the sensor data and immediately initiates the appropriate steps, such as closing the metering valves and canceling the current cleaning cycle when a flashback is detected.
- so-called non-return valves can be arranged in the inlet device or mixing unit downstream of the metering valves. These ensure that a pressure surge caused by a reignition does not affect the metering fitting and damage it.
- the device may further include insertion aids, which simplify or facilitate the insertion of the transport tube into the interior of the container or the system.
- the transport hose Since the transport hose has no intrinsic stability transversely to its longitudinal direction, its introduction into the interior of the container or installation is made more difficult. Under certain circumstances, the transport hose must therefore be manually introduced or carried out by personnel stationed in the interior of the container or installation. However, this is not always possible or desirable.
- the transport hose must be guided through spaces which are difficult to access in order to introduce these into the interior to be cleaned.
- the passage openings can be arranged offset to one another, a straight through the transport tube through the gap is virtually impossible.
- the device can now comprise a flexible tube in a first embodiment of an insertion aid, by means of which the transport tube can be guided through passages in the interior of the container or system to be cleaned.
- the flexible tube forms a, in particular closed, guide channel. Through this guide channel of the transport hose is guided.
- the flexible tube is characterized in particular by the fact that this is flexible, but nevertheless semi-rigid. As a result, the flexible tube can be bent out of its longitudinal axis, but it also remains in its bent position under the action of gravity.
- the flexible tube is in particular made of metal, such as steel.
- the flexible tube can / .. B. be a coiled metal hose.
- the flexible tube can now be relocated once by the operator and bent the course of Ein foundedweges accordingly rightly. Once the flexible tube has been laid and bridged, for example, a gap, the transport tube can be passed through the flexible tube as often as desired and withdrawn again. This is particularly important because the transport hose when using container cases for each cleaning process for the purpose of attaching a new container shell pulled out of the interior again and must be reintroduced into this.
- the device can comprise an insertion tube, by means of which the transport tube can be introduced via an opening into the interior of the container or installation to be cleaned.
- the insertion tube forms a, in particular closed, guide channel. The insertion depth of the transport tube can be determined by the insertion position of the insertion tube.
- the insertion tube is particularly straight.
- the insertion tube is in particular made of metal, such as steel.
- the insertion tube may have at its cleaning side opening a downwardly directed, arcuate support for the transport hose.
- the arcuate support serves as kink protection and should prevent a bend of the transport tube down.
- the flexible tube and the insertion tube may include a cooling device / for cooling the transport tube inside the flexible tube or the insertion tube.
- the flexible tube or the insertion tube may be double-walled and comprise an annular cooling channel which surrounds the guide channel.
- a cooling medium such as water, is injected.
- the flexible tube or the insertion tube may include a connection device, such as connecting pieces, for connecting a supply line for the cooling medium and for feeding the cooling medium into the cooling channel.
- a cable system can be provided, by means of which the transport hose with the container shell or with the outlet opening in the interior can be raised and / or lowered vertically. Furthermore, the cable system can also be designed so that the transport hose can be moved horizontally with the container shell or with the outlet opening in the interior.
- the cable pull system comprises one or more flexible traction means and one or more deflection rollers.
- the flexible traction means may be a rope, cord, belt, belt, cable or chain.
- the cable system may be designed as a simple cable or include such.
- the cable system may be designed as a pulley or include such.
- a cable system which is designed in particular as a pulley, can also be used to introduce alternative cleaning agents, such as explosives, in the interior of the container or system and to position it.
- the device according to the invention makes it possible to achieve large ranges, hitherto not achieved, without the supply device or the dosing unit having to be repeatedly displaced.
- the flexible transport hose can be guided over complex introduction paths in the interior of the container or the system to be cleaned, which is not possible with conventional cleaning lances.
- the transport hose Thanks to the special construction of the transport hose, it is very robust despite its flexibility and, depending on the design variant, both pressure-resistant and heat-resistant.
- the smooth inner wall of the transport channel also allows the transport of the explosive mixture over long distances without incisive pressure loss. Since the inlet device or mixing unit, in contrast to conventional cleaning lances, is no longer arranged on a handpiece, such as a lance body, but rather in the flow direction in front of the transport hose, the handling is considerably simplified. Thus, a lance body designed as a land portion without inlet device or mixing unit weighs much less than a conventional cleaning lance with an inlet device or mixing unit.
- the inlet device or mixing unit like the supply device or metering unit according to the invention, no longer has to be constantly displaced.
- the arrangement of the inlet device or mixing unit far away from the handpiece also increases safety, since the operator is no longer directly at the inlet device or mixing unit when operating the device. It should be noted that the inlet device or mixing unit considered over the entire system is most susceptible to safety-related disorders, such as those that occur in flashbacks, for example.
- FIG. 1 a shows a cross-sectional view of a transport tube according to the invention
- FIG. 1b shows a cross-sectional view of the corrugated hose of a transport hose according to FIG.
- FIG. 1c shows a detail view of a transport hose according to FIG. 1a;
- FIG. 2 shows a cross-sectional view of a further embodiment of a transport hose according to the invention with a cooling channel;
- FIG. 3a shows a cross-sectional view of a further embodiment of a transport hose according to the invention with a cooling channel;
- FIG. 3b shows a side view of the transport hose according to FIG. 3a;
- FIG. 4 shows the supply-side region of the cleaning device according to the invention;
- FIG. 5a shows the cleaning-side region of the cleaning device according to FIG. 4 according to a first configuration
- FIG. 5b shows the cleaning-side area of the cleaning device according to FIG. 4 according to a second configuration:
- FIG. 6 shows a variant of the inventive cleaning device
- FIG. 7 shows a further embodiment variant of the cleaning device according to the invention.
- FIG. 8 shows a further embodiment variant of the cleaning device according to the invention.
- FIG. 9a shows a further embodiment variant of the cleaning device according to the invention.
- FIG. 9b shows a modification of the embodiment according to FIG. 9a
- FIG. 10a shows a further embodiment variant of the cleaning device according to the invention.
- FIG. 10b shows a detailed view of the cleaning device according to FIG. 10a from FIG.
- Figure 1 1 a further embodiment of the inventive cleaning device
- Figure 12 is a side view of another embodiment of an insertion tube
- FIG. 13 shows a cross-sectional view of a further embodiment variant of a cleaning device according to the invention.
- FIG. 14a shows a further embodiment variant of a cleaning device according to the invention.
- FIG. 14b shows a cross-sectional view of the distribution unit according to the embodiment variant according to FIG. 14a.
- the same parts are provided with the same reference numerals in the figures.
- the described embodiments are exemplary of the subject invention and have no limiting effect.
- the transport hose 1.1 illustrated in FIGS. 1 a to 1 c has an inner winding hose 6 with a folded metal profile.
- the winding tube 6 forms the transport channel 3 for the explosive mixture.
- the winding tube 6 forms a smooth inner wall, which is interrupted only by a helical groove along which engage the folding profiles. The loose joining the folding profiles gives the winding tube 6 the necessary flexibility. However, the winding tube 6 is therefore not gas-tight.
- corrugated tube 5 made of metal, which surrounds the winding tube 6 (concentric).
- the wave-shaped configuration of the corrugated tube 5 gives it the necessary flexibility.
- a metal hose mesh 4 surrounds the corrugated tube 5.
- the hose braid 4 also axially, i. along the longitudinal axis L, acting tensile forces.
- the hose mesh 4 prevents the winding tube 6 and the corrugated tube 5 is deformed by the said compressive and tensile forces.
- the transport hose 1 .1 is equipped on the cleaning side with a hose coupling 2, which permits the tool-free connection of connection components to the transport hose 1.1.
- the described transport hose 1.1 represents a basic embodiment, which does not have a separate cooling channel and thus can only be cooled by introducing a cooling medium into the transport channel 3 from the inside. Since the transport hose 1.1 is made entirely of metal, this is correspondingly hit / .e- or heat-resistant and also extremely robust against the adverse environmental conditions, as prevail in the interior of the container or equipment to be cleaned, especially if the cleaning during operation of the Plant is made.
- FIG. 2 shows an embodiment with cooling channel 39 which is based on the basic embodiment according to FIG. 1a.
- the transport hose 1.2 contains, analogously to the basic design according to FIG. 1c, an inner winding hose 6, a corrugated hose 5 surrounding the winding hose 6 (concentric) and a the corrugated tube 5 (concentric) surrounding Schlauchgefiecht 4.
- FIG. 1c an inner winding hose 6
- FIG. 1c an inner winding hose 6
- corrugated hose 5 surrounding the winding hose 6 (concentric)
- a the corrugated tube 5 concentric
- the transport hose 1. 2 contains a further hose 7, made of ethylene-propylene-diene rubber (EPDM), surrounding the hose braid 4 (concentrically).
- EPDM ethylene-propylene-diene rubber
- the said tube 7.1 is liquid-tight.
- the outer tube made of EPDM has elastic properties due to the material and is therefore flexible, it does not need to have any special outer geometry in contrast to the winding tube or corrugated tube.
- annular cooling channel 39 is formed, in which a cooling medium 9 can be transported from the feed side end of the transport hose 1.2 at its cleaning-side end.
- a mixing unit 12 connects to the supply side (indicated only schematically), which also forms a transport channel and a cooling channel, which are connected to the transport channel 3 and the cooling channel 39 of the transport tube 1.2. Since the outer hose 7.1 made of EPDM is only limited heat or heat resistance, this embodiment of a transport hose 1.2 is not suitable for insertion into the hot interior of the container or system to be cleaned, especially when it is in operation.
- Said transport hose 1.2 finds particular use for use as a conduit extension outside of the interior to be cleaned or for applications in appropriately cooled interiors of containers to be cleaned or facilities.
- FIGS. 3a-3b show a further embodiment of a transport hose 1.3, which likewise builds up on the basic embodiment according to FIG. 1a and forms a cooling channel 39.
- the embodiment of Figure 3 a-b differs from the embodiment of Figure 2 in that the outer tube 7.2 is not made of plastic but a corrugated tube made of metal.
- the outer corrugated tube 7.2 may be the same structure as the corrugated tube 5, which surrounds the winding tube 6 and provides the necessary gastightness. Accordingly, the corrugated tube 7.2 is also liquid-tight.
- annular cooling channel 39 is also formed accordingly.
- this transport hose 1.3 is completely made of metal with cooling channel 39, this is correspondingly heat and heat resistant and can be used for hot applications in hot interior spaces to be cleaned containers or systems, which, for. B. in operation, are used.
- a mixing unit 12 (only schematically indicated), which also forms a transport channel and a cooling channel, which are connected to the transport channel 3 and the cooling channel 39 of the transport tube 1.3.
- FIG 3b a structure is shown, as is typical for a (cooled) transport hose 1.3, which is to be introduced into the interior of a container or system to be cleaned.
- a container connection member 38 connects, to which a container shell 8 is attached.
- the container connection member 38 has a transport channel with a cleaning-side outlet opening, via which the explosive mixture from the transport hose 1.3 is introduced into the container shell 8.
- the transport hose 1.3 is introduced together with the container shell 8 in the interior of a container or system to be cleaned.
- the container casing 8 is filled only in the interior of the container or system to be cleaned with the explosive mixture, which is supplied in the flow direction S through the transport channel 3.
- the cooling channel 39 has at the cleaning end of the transport hose 1.3 an outlet opening from which the cooling medium 9 emerges and a connection component, such as container connection member 38 and the container shell 8 cools.
- FIG. 4 shows the device 10.1 according to the invention from the area of the supply device 37.
- the supply device 37 comprises a dosing unit 21 with dosing containers 22, 23 for supplying a mixing unit 12 connected downstream to the dosing unit 21 with a first and second output component for producing the explosive mixture.
- the first and second output components are via supply lines 17, 18 of the Mixed unit 12 supplied.
- the metering containers 22, 23 are in turn supplied via supply lines 27, 28 from gas cylinders 25, 26, which are not integrated in the metering unit 21, with the respective output components.
- the metering unit 21 is designed as a mobile device on rollers, which should simplify the 1 landhabung the device 10.1 in a system.
- the metering unit 21 is also supplied via appropriate supply lines 29, 30 from the outside with water and compressed air. These components are needed to make the cooling medium.
- the metering unit for power also has a connection line 36 to an external power source.
- a control device 24 for controlling the cleaning process is arranged in the dosing unit 21. Among other things, the introduction of the starting components into the mixing unit 12 is controlled via the control device 24.
- a mixing unit 12 adjoins the metering unit 21 downstream. Via a first supply line 17, a first component in the form of a gaseous fuel, such as ethylene, is introduced into a first supply channel 14 of the mixing unit 12.
- a gaseous fuel such as ethylene
- the two supply channels 14, 15 open into a mixing zone 13, in which the two components to an explosive. gaseous mixture are mixed.
- a transport hose 1.2 connects, which is connected via a hinge 1 1 to the mixing unit 12.
- the explosive capable mixture is introduced from the mixing zone 13 via a transport channel in the transport channel 3 of the subsequent transport hose 1.2.
- the second supply channel 15 is annularly applied to the first supply channel 14.
- this arrangement is not mandatory.
- the mixing unit 12 further includes an ignition device 31 having an ignition-active component arranged in the mixing zone 13 or in connection to the mixing zone.
- the ignition device 31 is connected via a connecting line 32 to the metering unit 21 or to the associated control device 24.
- the ignition device 31 or the ignition process is controlled by the control device 24.
- the mixing unit 12 further comprises a cooling channel 16, which is arranged in a ring around the mixing zone 13 or around the subsequent transport channel of the mixing unit 12.
- the cooling channel 16 is connected via the pivot connection 11 with the cooling channel 39 of the transport tube 1.2.
- the cooling medium 9 consists of water and air, which are each supplied via separate supply lines 19, 20 from the metering unit 21 into the cooling channel 16.
- the supply of the cooling medium 9 is likewise controlled by the control device 24.
- the mixing unit 12 has a cooling device, it is also possible to connect transport hoses which do not contain a cooling channel 39 for introducing a cooling medium 9. In this case, simply no cooling medium 9 is fed into the mixing unit 12.
- a check valve 33 is arranged in each case, which should prevent the introduction of pressure surges upstream of the mixing unit 12 in the supply lines 17, 18 of the output components.
- a temperature sensor 35 is arranged in the mixing zone, which should detect abnormalities in the temperature profile during a cleaning cycle '.
- a pressure sensor 34 is arranged in the flow direction S in front of the mixing zone 13 in the first supply channel 14. This is intended to detect abnormalities in the pressure course during a rhyme. Such abnormalities occur, for example, in so-called flashbacks.
- FIGS. 5a and 5b show the device 10.1 according to the invention from the cleaning-side area in two configurations.
- the device 10.1. contains in both cases a transport hose 1.2, which is the supply side connected to a mixing unit 12 (see Figure 4).
- a container connection element 38 closes at the cleaning-side end of the transport hose 1.2. B. in the form of a connecting piece, to which a container shell 8 is attached.
- This configuration has already been described in the context of FIG. 3b. Reference is made to the corresponding description.
- the transport tube 1.2 is introduced together with the container shell 8 in the interior of a container or system to be cleaned.
- the container shell 8, however, is only in the interior with the explosive mixture filled, which is supplied in the flow direction S through the transport channel 3.
- a guide tube 42 which is designed as a handpiece, adjoins the cleaning-side end of the transport tube 1 .2.
- the guide tube 42 has a transport channel, via which the explosive mixture from the transport hose 1.3 is introduced into the container casing 8.
- the guide tube 42 has a container connection member 43 with an outlet opening, to which a container casing 8 is attached.
- the guide tube 42 and the container connection member 38 are each connected in both configurations via a hose coupling 44 with the transport hose 1.2. In this way, either a guide tube 42 or a container connection member 38 can be attached to the hose end.
- the cooling channel 39 of the transport tube 1.2 is connected to the cleaning side end of the transport hose 1.3 via the hose coupling with the transport channel of the guide tube 42.
- the cooling medium is conducted accordingly by the transport tube 1.2 through the guide tube 42 and leaves this via a cleaning-side outlet opening.
- the exiting cooling medium 9 cools the container casing 8 and optionally the container connection member 43 on the guide tube 42. If the device 10.1 described in FIGS. 4 and 5a is operated with a cooling medium 9, then a transport hose 1 .2 according to FIG. 2 or a transport hose 1.3 according to FIG. However, the device 10.1 can also be operated without a cooling medium 9, so that a transport hose 1.1 according to FIG. 1a-1c can be used.
- FIG. 6 shows a variant embodiment of a device 10.2 according to the invention.
- the device 10.2 has the feed side structure of the device 10.1 according to Figure 4 and the cleaning side structure of the device of Figure 5b. It will be omitted at this point to a repetition of the description of the device and, rather, refer to the corresponding parts of the description for Figure 4 and 5 b.
- a guide tube 42 designed as a handpiece is introduced together with a container casing 8 into the interior 52.1.
- the transport hose 1.1 which has the function of a line extension, is arranged outside the interior to be cleaned and is intended to bridge the distance between the dosing unit 21 or mixing unit 12 and the work opening in the system. Accordingly, the transport hose 1.1 does not need to be cooled. Nevertheless, in addition to the uncooled transport hose 1.1 according to the figures la-lc and a cooled transport hose 1 .2. 1.3 are used in particular for cooling the container shell 8 in hot applications, as described in Figures 2 and 3a-3b. Since the handling of the cooled Transportsehl also 1.2 according to Figure 2 is simpler compared to the cooled transport hose 1.3 according to Figure 3a-3b, comes in this configuration rather the transport hose 1.2 according to Figure 2 are used. FIG.
- FIG. 7 shows a further embodiment variant of a device 10.3 according to the invention.
- the device 10.3 has the feed side structure of the device 10.1 according to FIG. 4 and the cleaning side structure of the device according to FIG. 5a. It will be omitted at this point to a repetition of the description of the device and, rather, refer to the corresponding parts of the description for Figure 4 and 5a.
- the transport hose 1.3 As can be seen from FIG. 7, for the purpose of cleaning the interior 52.2 of the system 51.2, the transport hose 1.3, together with a container casing 8, is introduced into the interior 52.2 to be cleaned.
- the transport hose 1.3. is formed in accordance with FIGS. 3a-3b and has cooling. It is at this point to a repetition of the description of the transport hose 1.3. omitted and rather referenced to the corresponding description parts to Figure 3a-3b.
- a transport tube 1.2 according to FIG. 2 can be used. This also applies to the exemplary embodiments according to FIGS. 8, 9, 10a-10b and 11.
- the device 10.3 differs from the device 10.2 according to FIG. 6 by the missing handpiece in the form of a guide tube 42, by means of which the container casing 8 can be positioned in the interior 52.2.
- a cable system 80.1 with pull rope 81 and guide roller 82 is provided, by means of which the transport hose with the container casing 8 can be raised or lowered from the outside of the system 51.2 from above into the position to be cleaned.
- the pulley is outside of the system 51.2 and 52.2 arranged above the interior to be cleaned.
- the pull rope 81 is replaced by a Opening above the interior to be cleaned 52.2 inserted into the interior 52.2.
- FIG. 8 shows a further embodiment of a device 10.4 according to the invention.
- the device 10.4 differs from the device 10.3 according to Figure 7 only in the construction of the cable system 80.2.
- the cable system 80.2 includes a in the ceiling region of the interior 52.3 and arranged at the bottom of the interior 52.3 pulley 82, which allow. to guide the pull cable 81 through an opening in the lower region of the interior 52.2. Thanks to the two deflection rollers 82, the transport hose 1.3 with the container shell 8 (not expanded here) can be raised and lowered through the lower opening by means of the tensioning cable 81 deflected over the two deflection rollers 82 in the interior 52.2.
- FIG. 9a shows a further embodiment variant of a device 10.5 according to the invention.
- the device 10.5 differs from the device 10.3 and 10.4 according to Figures 7 and 8 also only in the construction of the cable system 80.3.
- the basic structure of the cable system 80.3 corresponds to the cable system 80.2 according to FIG. 8.
- the deflection roller 82 arranged in the ceiling region of the interior 52.4 is not fixedly mounted here.
- Said guide roller 82 is rather attached to a substantially horizontally oriented guide wire 83 and can be moved horizontally with this.
- the guide cable 83 can also be operated from the lower opening.
- the transport hose can be pulled 1.3 with the container shell 8 through the lower opening on the pull rope 81 in the interior 52.4 of Appendix 51.4 and Lower.
- the transport hose can be 1.3 move horizontally with the container shell 8 by means of the guide cable 83. In this way, it is possible to achieve in the interior to be cleaned 52.4 each place with the transport hose 1.3.
- FIG. 9 b shows an alternative solution to the cable pull system according to FIG. 9 a.
- the device instead of a a bottom of the interior 52.4 disposed pulley, the device contains 10.6 designed as Flcxrohr 70.1 insertion aid with a curvature of 90 °, by means of which the transport hose 1.3 is deflected from a horizontal insertion vertically upwards.
- 10.6 designed as Flcxrohr 70.1 insertion aid with a curvature of 90 °, by means of which the transport hose 1.3 is deflected from a horizontal insertion vertically upwards.
- the devices 10.7-10.8 according to FIGS. 10a-10b, 11 and 12 each include an insertion aid for the transport hose 1.3 in the interior 52.5, 52.6 of the system 51.5, 51.6.
- the execution of the transport hose 1 .3 is of minor importance in this context.
- FIGS. 10a-10b show an insertion aid designed as a flcx tube 70.2.
- the construction of a flexible tube 70.2 and its properties are described in detail in the general description section, to which reference is made to the following.
- the transport hose 1.3 must be guided from above through a gap 53 into the interior 52.5 of the installation 51.5 to be cleaned. Since the passage openings are offset from one another horizontally, the transport hose 1 .3 can not be lowered vertically into the interior 52.5.
- a flexible tube 70.2 / um is used, which is mounted once between the two passage openings in the intermediate space 53. Possibly, the flexible tube 70.2 must be guided in the intermediate space 53 along passages, so that this has an arcuate course.
- the transport hose 1.3 can now be used to clean the interior 52.5 without much effort on the flexible tube 70.2 through the gap 53 in the. Insert or lower interior 52.5 and pull out again.
- the flexible tube 70.2 has the advantage that the transport hose 1.3 can be pulled out of the inner space 52.5 as often as required by the flexible tube 70.2 for replacement of the container casing 8 for each cleaning cycle and can be reinserted thereinto. This, without each time an auxiliary force stationed in the intermediate space 53, the transport hose 1.3 manually pass through, must.
- a transport hose 1.3 with container casing 8 is introduced laterally through a lateral opening into the interior space 52.6 of the system 51.6 to be cleaned.
- the horizontal insertion length is limited in configurations without a guide tube, as shown in Figures 3b and 5a.
- an insertion 60.1 / comes to use, which is pushed with a section through the opening in the inner space 52.6.
- the construction of an insertion tube 60.1 and its properties are described in detail in the general part of the description to which reference is made.
- the transport hose 1.3 is pushed through the closed guide channel 63 of the insertion tube 60.1 and guided by this horizontally.
- the horizontal insertion depth of the transport tube 1.3 can now be determined by the insertion position of the insertion tube 60.1.
- the insertion tube 60.1 also has at its cleaning side opening a downwardly directed, arcuate support 61 for the transport hose 1 .3.
- the arcuate support 61 forms a kink protection for the transport hose 1.3.
- the insertion tube 60.2 shown in FIG. 12 is characterized by a cooling device for cooling the insertion tube 60.2.
- the introduction tube 60.2 forms a ring-shaped arranged around the guide channel 63 cooling channel 64, which is fed via a connecting piece 62 with a cooling medium 9.
- the cooling medium 9 can flow out of the cleaning side from an outlet opening. It may also be provided, a closed cooling circuit.
- the embodiment of a device according to the invention shown in FIG. 13 comprises an inlet device or mixing unit 101, which is only partially shown.
- the construction of the inlet device or mixing unit 101 may be constructed analogously, with the exception of the cooling medium supply, as in the exemplary embodiment according to FIG. 4.
- the inlet device or mixing unit 101 comprises an inlet connection 95 for introducing a cooling medium 103 into the transport channel 93.
- the inlet connection 95 is downstream of the igniter (not shown).
- To the inlet device or mixing unit 101 connects via a hose coupling with swivel 105 to a transport hose 91.
- the transport hose 91 has a hose seal 97 toward the hose coupling 105.
- a guide tube 100 is connected via a hose coupling 106 to the transport hose 91.
- the guide tube forms an outlet opening for the explosive gas mixture.
- the transport hose 91 also has a hose seal 98 in front of the hose coupling 106.
- the transport tube 91 comprises an inner plastic tube 92, which forms the transport channel 93.
- the plastic tube 92 is surrounded by a corrugated tube 94 made of metal, such as steel, or plastic, which together form an annular cooling channel 107.
- the corrugated tube 94 is in turn surrounded by a protective tube 104, / .. B. in the form of a hose braid.
- a cooling medium can be fed into the cooling channel 107 and transported toward the cleaning-side end of the cleaning device.
- a vomerventi l 99 is arranged on the transport hose 91, via which the cooling medium can be introduced into the transport channel 93.
- the cooling medium 102 thus passes in the region of the cleaning-side hose coupling 98 into the interior of the guide tube
- the cooling medium 103 can analogously to the embodiment of Figure 4 at the inlet device or at the mixing unit
- FIGS. 14a and 14b of a cleaning device according to the invention with supply device or metering unit 202, inlet device or mixing unit 203 and transport hose 204 is used in particular in waste heat boilers 200 with horizontally extending tube bundles 206, such as behind a gas turbine or an internal combustion engine in a gas and steam combined cycle power plant or a combined heat and power plant are arranged.
- waste heat boiler 200 have the task of the hot exhaust gases from a upstream process for steam generation or, more rarely, also for the production of hot water.
- the present embodiment is also quite generally applicable in the interior spaces of containers and equipment to be cleaned.
- Waste heat boilers 200 with horizontal tube bundles 206 have the disadvantage during their cleaning that the transport sleeve with the container casing can not be lowered from top to bottom as in the case of vertically extending tube bundles and can thus be positioned at various points in the interior (see, for example, FIG 10b).
- the cleaning lance or lance body or the transport tube with container shell at each cleaning step again and manually through a side access opening in the interior of the waste heat boiler 200 at the various cleaning points between two tube bundles 206 are positioned.
- the operator must each time anew into the interior 201 of the waste heat boiler 200 and position the cleaning device with container shell in order to carry out a further cleaning step at a new location.
- a distribution unit 205 is now connected to the cleaning-side end of the transport hose 204 via a coupling, such as a hose coupling.
- the distribution unit 205 includes a plurality of outputs, here five or six, for the parallel connection of positioning tubes 207a-207f.
- a positioning hose 207a-207f is releasably connected to an outlet via a coupling, such as a hose coupling.
- the clutches disclosed in the context of this embodiment variant are designed in particular as a quick coupling. While the transport hose 204 with the distribution unit 205 is arranged outside the container or waste heat boiler 200 to be cleaned, the positioning tubes 207a-207f are guided into the container interior 201. At the positioning tubes 207a-207f, in particular at their cleaning-side ends, in each case a container shell 209a-209f is connected, this can be done via a connection component.
- the container casings 209a-209f on the individual positioning tubes 207a-207f can now be positioned at different locations within the container interior 201, in particular at different locations between two horizontal tube bundles of a waste heat boiler 200.
- the positioning tubes 207a-207f may have different lengths.
- Each positioning hose 207a-207f connected to the distribution unit 205 is assigned a switchable valve 208a-208f in the distribution unit 205.
- explosive mixture can be introduced into each positioning hose 207a-207f independently of the other positioning hoses 207a-207f, and a container casing 209a-209f can be supplied or filled with an explosive mixture.
- the explosive mixture is from the transport hose 204 to Distributed unit 205 supplied.
- the valves 208a-208f are switchable via a control device.
- the described cleaning device now makes it possible to position a plurality of positioning hoses 207a-207f, each with a connected container casing 209a-209f, in the container interior 201 at different locations in one process.
- the container cases 209a-209f are supplied with explosive mixture via the positioning tubes 207a-207f in a sequential sequence and brought to explosion in a controlled manner.
- positioning hoses can also be charged with an explosive mixture via a common, controllable valve in the distribution unit.
- the use of a distributor is dispensed with.
- the positioning tubes are instead sequentially, i. sequentially, coupled via a single clutch manually to the transport hose and after performing the cleaning step again decoupled from this.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cleaning In General (AREA)
- Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
- Bridges Or Land Bridges (AREA)
- Adornments (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Air Transport Of Granular Materials (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Incineration Of Waste (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RS20240371A RS65381B1 (en) | 2017-05-24 | 2018-05-24 | Method and device for cleaning interiors of containers and facilities |
HRP20240341TT HRP20240341T1 (en) | 2017-05-24 | 2018-05-24 | Method and device for cleaning interiors of containers and facilities |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH00682/17A CH713804A1 (en) | 2017-05-24 | 2017-05-24 | Apparatus and method for removing deposits in the interior of containers or installations. |
PCT/EP2018/063618 WO2018215582A1 (en) | 2017-05-24 | 2018-05-24 | Method and device for cleaning interiors of containers and facilities |
Publications (3)
Publication Number | Publication Date |
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EP3630379A1 true EP3630379A1 (en) | 2020-04-08 |
EP3630379B1 EP3630379B1 (en) | 2024-01-03 |
EP3630379C0 EP3630379C0 (en) | 2024-01-03 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP18725854.6A Active EP3630379B1 (en) | 2017-05-24 | 2018-05-24 | Method and device for cleaning interiors of containers and facilities |
Country Status (23)
Country | Link |
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US (1) | US11583901B2 (en) |
EP (1) | EP3630379B1 (en) |
JP (1) | JP7178369B2 (en) |
KR (1) | KR20200010467A (en) |
CN (1) | CN110662611B (en) |
AR (1) | AR111957A1 (en) |
AU (1) | AU2018274168B2 (en) |
BR (1) | BR112019023747B1 (en) |
CA (1) | CA3061838A1 (en) |
CH (1) | CH713804A1 (en) |
EA (1) | EA201992702A1 (en) |
ES (1) | ES2973781T3 (en) |
GE (1) | GEP20227394B (en) |
HR (1) | HRP20240341T1 (en) |
HU (1) | HUE065916T2 (en) |
IL (1) | IL270737B2 (en) |
PH (1) | PH12019502441A1 (en) |
PL (1) | PL3630379T3 (en) |
RS (1) | RS65381B1 (en) |
SA (1) | SA519410422B1 (en) |
TW (1) | TWI803494B (en) |
WO (1) | WO2018215582A1 (en) |
ZA (1) | ZA201907492B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110102541A (en) * | 2019-06-10 | 2019-08-09 | 福建省中瑞装备制造科技有限公司 | A kind of cement bunker high-efficiency cleaning system |
FI130431B (en) * | 2019-06-12 | 2023-08-28 | Lassila & Tikanoja Oyj | Device and method for cleaning with explosive material |
EP4160134A1 (en) * | 2021-09-30 | 2023-04-05 | Conservator Tyche Beheer B.V. | Device for and method of cleaning the internals of installations |
WO2024146855A1 (en) * | 2023-01-04 | 2024-07-11 | Bang & Clean Gmbh | Method and device for cleaning concrete mixers, and concrete mixing plants |
Family Cites Families (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3934618A (en) * | 1974-08-26 | 1976-01-27 | Controls Southeast, Inc. | Jacketed pipe assembly formed of corrugated metal tubes |
US4384595A (en) | 1981-09-14 | 1983-05-24 | Parker-Hannifin Corporation | Hose construction |
JPS6088189A (en) | 1983-10-15 | 1985-05-17 | 株式会社白新 | Simultaneous printing of front and back surface fiber by board winding printing method |
JPS6088189U (en) * | 1983-11-22 | 1985-06-17 | 住友電気工業株式会社 | Self-sealing flexible fluid transfer tube |
DE3600100C1 (en) * | 1986-01-04 | 1987-04-09 | Schubert Werner | Pipe cleaning device for removing coarse soiling |
US5129429A (en) * | 1989-09-11 | 1992-07-14 | Dayco Products, Inc. | Flexible hose construction |
US5196648A (en) * | 1991-05-30 | 1993-03-23 | Jet Research Center, Inc. | Method for deslagging a cyclone furnace |
US5769034A (en) | 1997-01-17 | 1998-06-23 | Zilka; Frank | Device, system and method for on-line explosive deslagging |
US6321690B1 (en) * | 1997-01-17 | 2001-11-27 | North American Industrial Services, Inc. | Device, system and method for on-line explosive deslagging |
DE29701625U1 (en) * | 1997-01-31 | 1997-03-20 | Witzenmann GmbH Metallschlauch-Fabrik Pforzheim, 75175 Pforzheim | Flexible pipe element for exhaust pipes |
DE29707908U1 (en) * | 1997-05-02 | 1998-09-03 | Witzenmann GmbH Metallschlauch-Fabrik Pforzheim, 75175 Pforzheim | Flexible pipe element |
AU9395798A (en) * | 1997-09-19 | 1999-04-12 | Total Containment, Inc | Improved flexible hose construction and method of making same |
US6334466B1 (en) * | 1998-10-09 | 2002-01-01 | The Gates Corporation | Abrasion-resistant material handling hose |
JP4526230B2 (en) | 2001-04-12 | 2010-08-18 | バング・アンド・クリーン・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング | Method and apparatus for cleaning combustion equipment |
US20040060608A1 (en) * | 2002-09-27 | 2004-04-01 | Dormont Manufacturing Company | Flexible fluid line connector assembly with brazed end fittings |
US7571745B2 (en) * | 2004-05-28 | 2009-08-11 | Westfalia Metallschlauchtechnik Gmbh & Co. Kg | Exhaust-gastight decoupling element from stripwound hoses |
FR2889285A1 (en) * | 2005-08-01 | 2007-02-02 | Nobel Plastiques Soc Par Actio | Fuel e.g. gasoline, transport pipeline for e.g. service station, has outer tube with inner and outer layers, where inner layer is helically corrugated and is free with respect to inner tube for forming spacer unit |
EP1854558B1 (en) * | 2006-05-08 | 2013-09-18 | Suttner GmbH | Valve assembly |
JP2008202906A (en) | 2007-02-22 | 2008-09-04 | General Electric Co <Ge> | Pulse detonation combustor cleaner and operating method |
US20090277479A1 (en) * | 2008-05-09 | 2009-11-12 | Lupkes Kirk R | Detonative Cleaning Apparatus |
JP2009281463A (en) | 2008-05-21 | 2009-12-03 | Kuraray Plast Co Ltd | Resisting pressure flexible corrugated hose |
JP5758087B2 (en) * | 2010-06-02 | 2015-08-05 | 矢崎総業株式会社 | Wire harness |
NL2007314C2 (en) * | 2011-08-29 | 2013-03-04 | BWAdvise | DEVICE AND METHOD FOR CLEANING INDUSTRIAL INSTALLATION COMPONENTS. |
US20130056034A1 (en) * | 2011-09-07 | 2013-03-07 | Bha Group, Inc. | Self driven rotating pulse detonation cleaning system |
CH705845A2 (en) * | 2011-12-07 | 2013-06-14 | Bang & Clean Gmbh | With an explosive mixture auftreibbare, flexible container cover for an apparatus and method for removing deposits in containers by means of explosive technology. |
CN203002709U (en) * | 2012-12-14 | 2013-06-19 | 昆明钢铁控股有限公司 | Steam explosion type pipeline high-efficiency cleaning blocking device |
CH707256A1 (en) * | 2012-12-20 | 2014-06-30 | Bang & Clean Gmbh | Device and method for cleaning of combustion apparatus. |
JP6895221B2 (en) * | 2013-02-11 | 2021-06-30 | バング・アンド・クリーン・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング | How to clean the inside of a container or equipment |
US8997794B2 (en) * | 2013-04-18 | 2015-04-07 | Sung-Kyu Chang | Vibration absorbing pipe for refrigeration compressor |
CN103322343A (en) | 2013-06-27 | 2013-09-25 | 江苏博格东进管道设备有限公司 | Thermal-insulation explosion-proof metal hose |
CH709242A1 (en) * | 2014-02-11 | 2015-08-14 | Bang & Clean Gmbh | Method and apparatus for cleaning the interiors of containers and equipment by means of explosion technology. |
CN106594411B (en) * | 2017-01-03 | 2020-02-07 | 上海瑞皇管业科技股份有限公司 | Polyethylene polypropylene reinforced composite double-wall corrugated pipe |
-
2017
- 2017-05-24 CH CH00682/17A patent/CH713804A1/en unknown
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2018
- 2018-05-24 RS RS20240371A patent/RS65381B1/en unknown
- 2018-05-24 AR ARP180101381A patent/AR111957A1/en active IP Right Grant
- 2018-05-24 ES ES18725854T patent/ES2973781T3/en active Active
- 2018-05-24 KR KR1020197037945A patent/KR20200010467A/en not_active Application Discontinuation
- 2018-05-24 WO PCT/EP2018/063618 patent/WO2018215582A1/en active Application Filing
- 2018-05-24 US US16/615,509 patent/US11583901B2/en active Active
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- 2018-05-24 EP EP18725854.6A patent/EP3630379B1/en active Active
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2019
- 2019-10-28 PH PH12019502441A patent/PH12019502441A1/en unknown
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CN110662611B (en) | 2023-05-02 |
HRP20240341T1 (en) | 2024-05-24 |
BR112019023747B1 (en) | 2023-04-11 |
CA3061838A1 (en) | 2019-10-29 |
AU2018274168B2 (en) | 2023-07-27 |
TWI803494B (en) | 2023-06-01 |
JP7178369B2 (en) | 2022-11-25 |
CN110662611A (en) | 2020-01-07 |
EP3630379B1 (en) | 2024-01-03 |
AU2018274168A1 (en) | 2019-11-28 |
IL270737B2 (en) | 2023-08-01 |
TW201900292A (en) | 2019-01-01 |
WO2018215582A1 (en) | 2018-11-29 |
PH12019502441A1 (en) | 2020-10-05 |
ZA201907492B (en) | 2021-04-28 |
RS65381B1 (en) | 2024-04-30 |
GEP20227394B (en) | 2022-07-11 |
EA201992702A1 (en) | 2020-03-18 |
IL270737A (en) | 2020-01-30 |
US11583901B2 (en) | 2023-02-21 |
ES2973781T3 (en) | 2024-06-24 |
CH713804A1 (en) | 2018-11-30 |
EP3630379C0 (en) | 2024-01-03 |
SA519410422B1 (en) | 2022-11-29 |
HUE065916T2 (en) | 2024-06-28 |
PL3630379T3 (en) | 2024-05-13 |
AR111957A1 (en) | 2019-09-04 |
BR112019023747A2 (en) | 2020-05-26 |
JP2020527687A (en) | 2020-09-10 |
KR20200010467A (en) | 2020-01-30 |
US20200094296A1 (en) | 2020-03-26 |
IL270737B1 (en) | 2023-04-01 |
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